Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 27.0mm), heaviest during Thu night. Very mild (max 17°C on Fri afternoon, min 5°C on Wed night). Winds increasing (calm on Wed morning, near gales from the S by Thu afternoon).
Osa Weather (Days 4-6): Heavy rain (total 28.0mm), heaviest during Sun night. Very mild (max 19°C on Sun morning, min 9°C on Sat night). Winds increasing (light winds from the ESE on Sun morning, strong winds from the SSW by Mon morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 1 |  | ||||
| Bottom Lift: | 1 | |
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  |  |  |  |  |  | | |  | | | |  | | | | |
clear | clear | some clouds | cloudy | light rain | heavy rain | mod. rain | rain shwrs | some clouds | clear | some clouds | some clouds | clear | some clouds | mod. rain | light rain | mod. rain | mod. rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 3 | 16 | 7 | 1 | — | — | — | — | — | — | 7 | 5 | 9 | 7 | |
max °C | 12 | 13 | 6 | 11 | 9 | 15 | 15 | 17 | 12 | 15 | 15 | 9 | 19 | 19 | 12 | 11 | 12 | 12 |
min °C | 8 | 9 | 5 | 10 | 9 | 11 | 15 | 15 | 8 | 12 | 11 | 9 | 16 | 15 | 11 | 10 | 11 | 12 |
8 | 9 | 2 | 7 | 5 | 7 | 13 | 13 | 5 | 9 | 8 | 6 | 16 | 14 | 7 | 6 | 8 | 10 | |
25 | 40 | 41 | 53 | 63 | 95 | 99 | 73 | 86 | 43 | 32 | 53 | 21 | 36 | 41 | 89 | 92 | 98 | |
2350 | 3250 | 3550 | 3300 | 3750 | 3900 | 3800 | 3900 | 3450 | 3150 | 3250 | 3600 | 3500 | 3650 | 3600 | 3750 | 3850 | 3750 | |
 | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:45 | — | — | 5:43 | — | — | 5:43 | — | — |
 | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:39 | — | — | 6:40 | — |
Heavy rain (total 27.0mm), heaviest during Thu night. Very mild (max 17°C on Fri afternoon, min 5°C on Wed night). Winds increasing (calm on Wed morning, near gales from the S by Thu afternoon).
Heavy rain (total 28.0mm), heaviest during Sun night. Very mild (max 19°C on Sun morning, min 9°C on Sat night). Winds increasing (light winds from the ESE on Sun morning, strong winds from the SSW by Mon morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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